1212031319 has 2 divisors, whose sum is σ = 1212031320. Its totient is φ = 1212031318.

The previous prime is 1212031313. The next prime is 1212031343. The reversal of 1212031319 is 9131302121.

It is a weak prime.

It is an emirp because it is prime and its reverse (9131302121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212031319 - 2⁸ = 1212031063 is a prime.

It is a super-2 number, since 2×1212031319² = 2938039836473759522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212031294 and 1212031303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212031313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606015659 + 606015660.

It is an arithmetic number, because the mean of its divisors is an integer number (606015660).

Almost surely, 2^1212031319 is an apocalyptic number.

1212031319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212031319 is an equidigital number, since it uses as much as digits as its factorization.

1212031319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1212031319 is about 34814.2401755374. The cubic root of 1212031319 is about 1066.1982058900.

The spelling of 1212031319 in words is "one billion, two hundred twelve million, thirty-one thousand, three hundred nineteen".